CN115446541A - Pipe gripper used for aircraft conduit welding fixture, its use method and processing method - Google Patents

Abstract

The invention relates to the technical field of airplane assembly, in particular to a pipe clamp for an airplane conduit welding clamp, and a using method and a processing method thereof; a tube holder for an aircraft conduit welding fixture, comprising: the positioning support, the connecting plate and the two clamping plates; the positioning support is used for connecting the aircraft guide pipe welding clamp; the connecting plate is hinged to the positioning support through a hinged bolt; one clamping plate is detachably fixed on the connecting plate; the shape and the size of the splint are matched with those of the airplane conduit; one ends of the two clamping plates are connected through a hinge, and the two clamping plates can be respectively clamped or loosened on the airplane guide pipe by abutting or separating; the clamping plate is provided with the locking part, and each part of the pipe clamp for batch production is not limited by the design time of the airplane conduit clamp, and is not required to be designed and finished by a welding clamp, so that the requirement of airplane conduit production can be quickly responded, the production period of the welding clamp is shortened, the process structure of the pipe clamp is optimized, the pipe clamp is convenient to process and manufacture, the production time is shortened, and the production cost is reduced.

Description

Pipe gripper used for aircraft conduit welding fixture, its use method and processing method

technical field

The invention relates to the technical field of aircraft assembly, in particular to a pipe gripper used for welding fixtures of aircraft conduits, its use method and processing method.

Background technique

The fixture is a device used to fix the processing object in the aircraft assembly process so that the processing object occupies the correct position to accept construction or inspection, also known as a fixture. In a broad sense, the device used to quickly, conveniently and safely install the workpiece in any process of the process can be called a fixture, such as welding fixtures, inspection fixtures, assembly fixtures, etc. The fixture used to position and fix the aircraft conduit during the process of welding the aircraft conduit belongs to the aircraft conduit welding fixture. Several grippers whose positions and heights follow the direction of the aircraft conduit must be set on the aircraft conduit fixture in order to secure each part of the aircraft conduit. The segments are clamped in place and secured so that the aircraft duct to be welded can be centered for welding. Existing grippers usually adopt a welded structure. After welding, aging heat treatment is required, and then the shape of the gripper, the hinge notch, and the pin hole are processed separately, resulting in a complicated manufacturing process and a long production cycle for the gripper; and, due to The design of the angle and height of the gripper needs to conform to the direction design of the aircraft duct. The traditional welded structure gripper has a welded structure and is fixed on the welding fixture of the aircraft duct by welding. The height and angle cannot be adjusted after production. change, and the gripper needs to be fixed on the aircraft conduit fixture. The height and inclination angle of the pipe gripper are related to the design of the aircraft conduit fixture. It is necessary to start the production of matching angle and height after the design of the aircraft conduit welding fixture is completed. The grippers of the pipe grippers lead to a lag in the production and installation of the grippers and cannot meet the needs of rapid response in the production of aircraft ducts.

Contents of the invention

The object of the present invention is to provide a pipe gripper with a welded structure in the prior art for the problems that the height and angle cannot be changed after production due to the welded structure, resulting in complicated process and lagging production and installation. A pipe gripper used in aircraft conduit welding fixtures, its use method, and its processing method.

In order to achieve the above object, the technical scheme adopted in the present invention is:

The pipe clamp used for the welding fixture of the aircraft conduit includes: a positioning support, a connecting plate and two clamping plates; the positioning support is used to connect the welding fixture of the aircraft conduit; the connecting plate is hinged to the positioning Support; one of the splints is detachably fixed on the connecting plate; the shape and size of the splints are matched with the aircraft conduit; one end of the two splints is connected by a hinge, and the two splints are connected by a hinge. Tightening or separation can be respectively clamped or loosened on the aircraft conduit; the splint is provided with a locking member.

This solution sets the positioning support that can be connected to the welding fixture of the aircraft conduit, and sets the splint that matches the shape of the aircraft conduit. The splint can be fixed to the positioning support by being detachably fixed to the connecting plate. Compared with the traditional welding structure fixture, The components that make the positioning support, splint and connecting plate are modularized respectively can mass produce connecting plates, positioning supports and splints of different sizes, and the combination of connecting plates of different sizes and positioning supports of different sizes can obtain the different heights. Gripper, the angle of the gripper can be adjusted by changing the fixed position or fixed angle of the positioning support, so that the grippers with different heights can be adjusted and used on aircraft conduit fixtures with different heights or parts layout, so as to Adapt to the direction of the aircraft duct, so that the production of the clamp does not depend on the design of the aircraft duct clamp, so that it is not limited by the design time of the aircraft duct clamp, and can be produced at the same time or before the production of the aircraft duct clamp. Modular components can be put into batch pre-production after counting the common specifications of aircraft ducts, without waiting for the completion of welding jig design, can quickly respond to the needs of aircraft duct production, shorten the production cycle of welding jigs, and optimize the process of grippers structure, which is convenient for processing and manufacturing, shortens production time and reduces production costs.

As a preferred solution of the present invention, the splint is in the shape of a semicircle. In this preferred solution, by setting the splint in a semi-circular shape, the hinge and the abutment can be located in the middle of the aircraft duct after the two splints are pressed against each other, so that the force on the aircraft duct is more uniform and the fixation is more stable; and, the splint is set In order to be in the shape of a semi-circle, when manufacturing different splints for clamping aircraft ducts with different outer diameters, it is only necessary to change the radius of the splints to produce different splints that meet the requirements, further improving the convenience of structural manufacturing.

As a preferred solution of the present invention, the positioning support is an L-shaped support plate; the bottom edge of the positioning support is provided with a connecting hole for connecting the welding fixture of the aircraft conduit; the connecting plate is parallel to the On the vertical side, the hinged bolts pass through the hinged holes and are bolted to the connecting plate.

In this preferred solution, the positioning support is set as an L-shaped support plate, so that the positioning support forms a right-angled bottom edge and a vertical edge, and a connecting hole is set on the bottom edge, so that the bottom edge can be fixed to the aircraft conduit welding fixture through the connecting hole. The connecting plate is parallel to the vertical side and connected to the vertical side by hinged bolts, so that the connecting plate can be installed on the positioning support to realize the welding fixture perpendicular to the aircraft duct, so that the installed pipe gripper will not be laterally deflected, which is beneficial to both The two aircraft pipes to be welded by the pipe gripper are centered, reducing the debugging process, making it more convenient for the pipe gripper to be used for aircraft pipe welding and clamping, and improving work efficiency

As a preferred solution of the present invention, several groups of hinged holes are provided, and each group of hinged holes includes three arranged in a triangle. In this preferred solution, several groups of hinged holes are provided, and each group of hinged holes is provided with three triangles, so that the connecting plate can be fixed to the positioning support at three points through three hinged bolts. The triangle has stability and reduces The probability that the connecting plate rotates or slips relative to the positioning support due to the support of the aircraft conduit, thereby maintaining the stability of the aircraft conduit during welding, improving the stability of the clamping device, is conducive to improving the stability of the aircraft conduit welding Medium precision; it is also possible to set several groups of hinged holes so that the connecting plate can be connected in different orientations, and change the connecting position of the connecting plate to adapt to the splint to adjust the position or angle of clamping the aircraft conduit.

As a preferred solution of the present invention, multiple sets of hinged holes are provided, and the multiple sets of hinged holes are arranged in rotation around one of the hinged holes. In this preferred solution, by setting multiple sets of hinged holes, and making multiple sets of hinged holes rotate around the center of the circumscribed circle of the triangle, the position of the connecting plate fixed on the positioning base by hinged bolts can be fixed with one of the hinged holes Rotating different angles for the center, in the case that the splint is parallel to the vertical side of the positioning support and will not be laterally deflected, the splint can be installed at different angles of inclination, so that the clamp can be adjusted according to the actual direction of the aircraft conduit The angle of inclination further enhances the flexibility of the pipe gripper, and enhances the applicability for welding of aircraft conduits.

As a preferred solution of the present invention, one end of the connecting plate used for connecting the clamping plate is provided with a boss; The vertical side of the support. In this preferred solution, the boss is provided on the connecting plate so that the boss protrudes from the vertical edge of the positioning support, so that the boss is supported on the positioning support by abutting against the positioning support, so that the connecting plate has a supporting and load-bearing function. function instead of only relying on hinged bolts for support, which reduces the damage rate of hinged bolts and hinged holes, prolongs the service life of the pipe gripper, and enhances the load-bearing performance of the pipe gripper, further saving costs and improving economy benefit.

As a preferred solution of the present invention, the vertical side of the positioning support is provided with a slope inclined along the axial direction of the aircraft duct. In this preferred solution, by setting the vertical side of the positioning support as an inclined plane inclined along the axial direction of the aircraft duct, after the splint is adjusted to tilt relative to the positioning support along the axial direction of the aircraft duct, the boss can also be abutted against the inclined surface, maintaining The load-bearing performance of the connecting plate.

As a preferred solution of the present invention, the locking member includes: a U-shaped steel wire and an eccentric locking rod; the open end of the U-shaped steel wire is rotatably connected to the eccentric locking rod through a connecting pin, and the U-shaped steel wire The closed end is hinged to one of the splints; the end of the eccentric locking rod can be pressed against the other splint, thereby locking the two splints.

In this preferred solution, by setting the locking member to include a U-shaped steel wire and an eccentric locking rod structure, the U-shaped steel wire has both flexibility and rigidity, and the U-shaped steel wire is hinged to a splint, so that the U-shaped steel wire can bear the tension of the eccentric locking rod , and cooperate with the eccentric locking rod to press against the other splint, the eccentric locking rod can not only realize the fastening of the two splints, but also realize the opening and closing of the two splints by holding the rod body, which is convenient to operate and saves labor. The pipe gripper used for the welding fixture of the aircraft conduit is more convenient to use.

As a preferred solution of the present invention, the clamping plate is fixed to the connecting plate through expansion pins. In this preferred solution, the expansion pin is used to fix the splint to the connecting plate, which enhances the fixing firmness of the splint and facilitates disassembly and replacement of the splint.

In order to achieve the above object, the present invention also provides a method for using a pipe gripper for an aircraft conduit welding fixture, using the pipe gripper for an aircraft conduit welding fixture, comprising the following steps:

Step 1: According to the required clamping position of the aircraft conduit, fix the first positioning support on the welding fixture of the aircraft conduit; the first positioning support is provided with several groups of hinged holes for the hinged bolts to connect; Each set of hinged holes includes three triangular arrangements; according to the height of the aircraft duct, select the first connecting plate of matching size, and connect the first connecting plate to the first positioning support; The splint is on the first connecting plate;

Step 2: Open the two splints, place the aircraft conduit between the two splints, and lock the locking member so that the two splints are clamped to the aircraft conduit;

Step 3: According to the inclination angle of the aircraft conduit, select a second positioning support with a hinged hole opening position different from that of the first positioning support, and fix the second positioning support on the welding fixture of the aircraft conduit; The height of the aircraft duct is selected to match the size of the second connecting plate; connect the second connecting plate to the first positioning support; fix the splint to the second connecting plate; repeat the above steps two to three until complete Clamp positioning for aircraft ducts.

The above-mentioned method of use of this program fixes the first positioning support on the aircraft conduit welding fixture according to the required clamping position of the aircraft conduit, and can select the first connecting plate with a matching size according to the height of the aircraft conduit, so that the first support and the first connection The matching combination of plates can meet the requirements of clamping and fixing according to the height of the aircraft conduit, or adjust the position of the first positioning support according to the clamping position required by the aircraft conduit, so that the clamper used for the welding fixture of the aircraft conduit can be used according to the aircraft conduit. It needs to be flexibly selected and fixed according to the clamping position and height, and the use is more convenient and flexible; by selecting the second support with a hinged hole opening position different from that of the first support according to the inclination angle of the aircraft duct, the second support Combined with the second connecting plate, another clamper with a different inclination angle from the first connecting plate can be obtained, so that the clamper used for the welding fixture of the aircraft duct can be matched and assembled according to the different inclination angles of the aircraft duct. The aircraft conduit welding jig has high flexibility in use, is convenient and quick to use, and has a high utilization rate.

In order to achieve the above object, the present invention also provides a processing method for the pipe gripper of the aircraft conduit welding fixture, which is used to process the above-mentioned pipe gripper for the aircraft conduit welding fixture, comprising the following steps:

Step S1: turning the overall material into a ring, so that the inner diameter of the ring matches the outer diameter of the aircraft duct; the ring is divided into two semi-circular rings of equal size as the two splint; a plurality of the connection plates and the positioning support with standardized dimensions processed in batches;

Step S2: several sets of hinged holes for connecting the hinged bolts are opened in multiple positioning supports, and each set of hinged holes includes three in a triangular arrangement; the multiple sets of hinged holes are as follows: One of the hinged holes is rotated different angles as the center.

In this scheme, the overall material is turned into a ring by turning. As long as the inner diameter of the ring matches the outer diameter of the aircraft duct, it can be clamped to the outer wall of the aircraft duct, and then the ring is divided into two semi-circular rings of equal size, namely Two modular splints can be processed. If splints with different inner diameters are produced, batch processing of splints with different inner diameters can be realized by changing one parameter of the turning radius, and the connecting plate and positioning support can be processed according to standardized design requirements. It is obtained that the processing method can be completed by turning or cutting, and the processing technology is simple, reliable and fast; by opening hinged holes in the positioning support, the connection position or inclination angle of the connecting plate through hinged bolts can be processed and controlled. The accuracy of the angle and inclination positioning of the splint is improved. Compared with the traditional welding fixing structure, the fixing position and inclination angle of the connecting plate can be adjusted by changing the position of the hinged hole, reducing the number of parts produced and saving materials. Reduce cost; by opening a set of hinged holes at different angles around one of the hinged holes on multiple positioning supports, multiple positioning supports can have a set of hinged holes with different rotation angles, so that different The positioning support and the splint are assembled to form clamps with different inclination angles of the splint, and the appropriate clamp can be selected according to the actual direction of the aircraft conduit; or by setting one of the hinged holes on each positioning support to rotate around the center Multiple groups of hinged holes with different angles, connecting the connecting plate to the hinged hole groups with different rotation angles can realize the splints connected to the connecting plate at different angles of inclination, so that the pipe gripper used for aircraft conduit welding fixture can The actual aircraft conduit direction adjusts the inclination angle of the splint, so that the applicability of the pipe gripper used for the aircraft conduit welding fixture can be enhanced through the processing technology, and the use flexibility of the pipe gripper is higher.

In summary, owing to adopting above-mentioned technical scheme, the beneficial effect of the present invention is:

1. Compared with the traditional welding structure fixture, the positioning support, splint and connecting plate are modularized parts, which can mass produce different sizes of connecting plates, positioning supports and splints, different sizes of connecting plates and different sizes of The combination of positioning support can obtain the pipe gripper with different heights, and the angle of the pipe gripper can be adjusted by changing the fixed position or fixed angle of the positioning support, so that it is not limited by the design time of the aircraft conduit fixture, and can be used in the production of aircraft At the same time as or before the conduit clamp, each modular component of the clamp can be produced in batches after the common specifications of the aircraft conduit are counted. There is no need to wait for the welding fixture design to be completed, and it can quickly respond to the needs of aircraft conduit production and shorten The production cycle of the welding fixture optimizes the process structure of the gripper, facilitates processing and manufacturing, shortens production time and reduces production costs;

2. The method of using the pipe gripper used for the welding fixture of the aircraft conduit, so that the combination of the first support and the first connecting plate can be clamped and fixed according to the height of the aircraft conduit, or clamped according to the requirements of the aircraft conduit Adjust the position of the first positioning support, so that the gripper used for the welding fixture of the aircraft duct can be flexibly selected and fixed according to the clamping position and height required by the aircraft duct, and the use is more convenient and flexible; Angle of inclination, select the second support with the opening position of the hinged hole different from that of the first support, so that the clamp used for the welding fixture of the aircraft duct can be matched and assembled according to the inclination angle of the aircraft duct. The use of the fixture is highly flexible, convenient and quick to use, and has a high utilization rate.

3. By turning the overall material into a ring, if producing splints with different inner diameters, batch processing of splints with different inner diameters can be realized by changing one parameter of the turning radius, and the connecting plate and positioning support can be processed according to standardized design requirements Obtained, the processing method can be completed by turning or cutting, and the processing technology is simple, reliable and fast;

4. By setting a group of hinged holes at different angles around one of the hinged holes in multiple positioning supports, multiple positioning supports can have a set of hinged holes with different rotation angles, which can be adjusted according to the actual situation. It is necessary to select a suitable clamp for the direction of the aircraft conduit, or to open multiple sets of reamed holes at different angles with the center of the triangle as the center of each positioning support, so that the clamp used for the welding fixture of the aircraft conduit can The actual aircraft conduit direction adjusts the inclination angle of the splint, so that the applicability of the pipe gripper used for the aircraft conduit welding fixture can be enhanced through processing technology, and the use flexibility of the pipe gripper is higher.

Description of drawings

Fig. 1 is the structural representation a of the module gripper of the present invention that is used for aircraft conduit welding fixture;

Fig. 2 is a sectional view along line A-A in Fig. 1;

Fig. 3 is a schematic structural view b of a pipe gripper for an aircraft conduit welding fixture according to the present invention;

Fig. 4 is a schematic structural view c of a pipe gripper for an aircraft conduit welding fixture according to the present invention;

Fig. 5 is the structure schematic diagram that the clamper that is used for the welding fixture of aircraft duct as shown in Fig. 4 is installed with hinged bolt;

Fig. 6 is a schematic structural view d of a pipe gripper for an aircraft conduit welding fixture according to the present invention;

Fig. 7 is a schematic structural view of the pipe gripper shown in Fig. 6 being installed with hinged bolts for the welding fixture of the aircraft conduit;

Fig. 8 is a schematic diagram a of the connecting plate structure of the present invention;

Fig. 9 is a schematic structural diagram b of the connecting plate of the present invention;

Fig. 10 is a schematic diagram a of the structure of the eccentric locking rod of the present invention;

Fig. 11 is a schematic diagram b of the structure of the eccentric locking rod of the present invention;

Fig. 12 is a structural schematic diagram of the connecting pin of the present invention;

Fig. 13 is a schematic diagram of the U-shaped steel wire structure of the present invention;

Icons: 1-locating support; 11-connecting hole; 12-hinging hole; 13-slope; 2-connecting plate; 21-hinging bolt; 22-hinge; 23-boss; 24-second hinged Hole; 3-splint; 31-expansion pin; 4-locking piece; 41-U-shaped steel wire; 42-eccentric locking rod; 43-connecting pin; 431-screw.

detailed description

Below in conjunction with accompanying drawing, the present invention is described in detail.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1

A pipe gripper used for welding fixtures of aircraft conduits provided by the present invention, as shown in Fig. 1 or Fig. 2 and Fig. 3, comprises: a positioning support 1, a connecting plate 2 and two splints 3; It is used to connect the welding fixture of the aircraft conduit; the connecting plate 2 is hinged to the positioning support 1 through the hinge bolt 21; one of the splints 3 is detachably fixed on the connecting plate 2; the shape and size of the splint 3 are matched with the aircraft conduit; the two splints One end of 3 is connected by hinge 22, and the tightness or separation of the two splints 3 can respectively clamp or loosen the aircraft conduit; the splint 3 is provided with a locking member 4.

Working principle: Loosen the locking part 4, because one end of the two splints 3 is connected by the hinge 22, so that the other ends of the two splints 3 are separated and can be opened. After the aircraft conduit is placed between the two splints 3, the The other ends of the two splints 3 are pressed against each other, and the two splints 3 are locked by the locking member 4, so as to achieve the purpose of clamping and fixing the aircraft conduit.

The connecting plate 2 can be provided with a second hinged hole 24 matching the hinged hole 12 .

It should be noted that the shape and size of the splint 3 are matched with the aircraft duct, which is understood as; one side of the splint 3 for clamping matches the shape of the outer wall of the aircraft duct and can fit and abut against the outer wall of the aircraft duct. The size of 3 is matched with the aircraft duct and understood that the space inside the splint 3 can accommodate the aircraft duct; the aircraft duct is usually a circular tube, preferably in the present invention, the splint 3 is in the shape of a semicircle, as shown in Figure 1, two and a half A circular ring can be realized by docking the circular ring splints 3 , and the clamping of the two splints 3 can realize tightening on the outer wall of the aircraft duct.

It should be noted that "detachable fixation" can be understood as the splint 3 can be fixed to the connection plate 2 and can be disassembled. Preferably, as shown in FIG. 1 or FIG. 2, the splint 3 can be fixed to the connection plate 2 through the expansion pin 31 , the present invention can also be preferably, as shown in Figure 1, make the lower surface of splint 3 press against the upper surface of connecting plate 2, and expansion pin 31 is driven into splint 3 from the surface of splint 3, not only can fix splint 3, and It can keep the splint 3 from being easily shaken by the vertical fixing effect of the expansion pin 31, and it is beneficial to keep the welding centered when used in the welding of aircraft conduits.

The hinge 22 is preferably used without modifying the small hinge 22, and the upper splint 3 can rotate 180° around the stainless steel hinge 22 to facilitate placement of the catheter.

It should be noted that the hinge bolt 21 is understood to mean that the connecting plate 2 can be hinged to the positioning support 1 through one hinge bolt 21, and can be positioned and fixed to the positioning support 1 through a plurality of hinge bolts 21. Preferably, refer to FIG. 1 As shown in and 3, Fig. 3 is a view from another angle of view of Fig. 1, by opening the hinged hole 12 in the positioning support 1, the hinged bolt 21 can make the connecting plate 2 and the positioning support 1 can be connected through the hinged hole 12 Disassemble the fastening connection, in order to be able to fix the connecting plate 2 at different angles of inclination, the present invention is preferred, as shown in Figure 4 and Figure 6, the hinged holes 12 are provided with several groups, and each group of hinged holes 12 includes triangular Three are arranged, and the hinged holes 12 are provided with multiple groups, and the multiple groups of hinged holes 12 are rotated around one of the hinged holes 12. For example, in Fig. An inclination angle, so that the splint 3 connected by the connecting plate 2 is at different inclination angles.

Specifically, as shown in Figure 4 and Figure 6, in order to facilitate the understanding of the setting of the hinged hole 12, Figure 4 and Figure 6 are the other side view of the pipe gripper of the present invention shown in Figure 1 without hinged The schematic diagram of the bolt 21, the hinged hole 12 in Fig. 4 is an embodiment, so that the position of the hinged hole 12 in Fig. 4 can be a positioning support 1, and the position of the hinged hole 12 in Fig. 6 is Another positioning support 1, and the difference that the hinged holes 12 shown in the two figures are provided is: the hinged holes 12 are arranged around one of the hinged holes 12 as the center, which is preferred here, as shown in Figure 6, Figure 6 The positions of the three hinged holes 12 described in FIG. 4 are obtained by rotating the positions of the three hinged holes 12 with the lower hinged hole 12 as the center. It should be noted that it can also be as shown in FIG. 4 It is shown that multiple groups of hinged holes 12 are all opened on one positioning support 1, as shown in Figure 4, another group of hinged holes 12 is obtained by rotating around the bottom of the three hinged holes 12 and one hinged hole 12. . In actual processing, as long as the size of the plate surface of the positioning support 1 is designed to be certain, it is easy to achieve another opening position by rotating around one of the hinged holes 12 by designing or marking the opening position.

Preferably in the present invention, the positioning support 1 is an L-shaped support plate; the bottom edge of the positioning support 1 is provided with a connecting hole 11 for connecting the welding fixture of the aircraft conduit; the vertical side of the positioning support 1 is provided with a hinged hole 12; The plate 2 is parallel to the vertical edge of the positioning support 1, and the hinged bolt 21 passes through the hinged hole 12 and is bolted to the connecting plate 2; it can be understood that the two sides of the L-shaped support plate are perpendicular to each other, as shown in Figure 1, two splints 3 If placed vertically, the bottom edge of the positioning support 1 of the clamp for the aircraft conduit welding fixture can be fixed to the aircraft conduit welding fixture (it can be understood that the aircraft conduit welding fixture is an aircraft that includes at least two aircraft conduit clamps. welding fixed platform);

Preferably, the L-shaped bottom edge of the positioning support 1 is placed horizontally, and the L-shaped vertical side of the positioning support 1 is placed vertically. By placing the connecting plate 2 vertically, the connecting plate 2 can be parallel to the positioning The vertical side of the support 1 is set. In the welding of the aircraft duct, the aircraft duct welding fixture must not only be able to fix the aircraft duct, but also make the two aircraft ducts to be connected keep the docking end stable for welding. The degree of freedom of the clamper is small, so that the clamper can be adjusted to an accurate position more easily. By placing the connecting plate 2 parallel to the positioning support 1, when it is necessary to adjust the inclination angle of the clamping plate 3, the connecting plate 2 can be adjusted by The vertical edge of the positioning support 1 is used as a reference, only adjusts the angle of inclination of the clamping plate 3, but does not adjust the angle of rotation of the clamping plate 3, the implementation can be preferred, the clamping plate 3 is preferably a semicircular clamping plate 3, as shown in Figure 1, The axial direction of the annular splint 3 is parallel to the vertical edge of the connecting plate 2 and the positioning support 1, so that the axial direction of the aircraft duct clamped by the splint 3 is on the same plane as the vertical edge of the connecting plate 2 and the positioning support 1. The direction of the aircraft conduit includes horizontal corners or vertical rise or fall. When the bottom edge of the positioning support 1 is fixed, the lateral corner of the gripper is fixed; When the plate 2 rotates vertically relative to the positioning support 1, the axial inclination of the splint 3 can be adjusted, so as to clamp the aircraft conduit according to the direction of the aircraft conduit, and realize the change of the clamping height of the clamp. Adapt to the direction of the aircraft duct.

Preferably in the present invention, as shown in Fig. 1, Fig. 2, Fig. 8 and Fig. 9, Fig. 9 is a view from another angle of view of Fig. 8, one end of the connecting plate 2 for connecting the splint 3 is provided with a boss 23; the boss 23 protrudes from the vertical side of the positioning support 1 , and can abut against and support the vertical side of the positioning support 1 . The boss 23 is understood as the thickness of the part of the connecting plate 2 located above the positioning support 1 is greater than the thickness of the part of the connecting plate 2 used to connect the positioning support 1, and forms a convex at the connection with the upper surface of the vertical edge of the positioning support 1 platform 23, so that the boss 23 can be supported on the upper surface of the vertical side of the positioning support 1.

Preferably in the present invention, as shown in Fig. 6 and Fig. 7, cooperate to enable the connecting plate 2 to rotate vertically relative to the positioning support 1 and fix it obliquely. The inclined surface 13 makes the boss 23 able to abut against the upper surface of the vertical side of the positioning support 1 after the positioning support 1 is rotated vertically and tilted.

Preferably in the present invention, as shown in Figure 1, the locking member 4 includes: a U-shaped steel wire 41, an eccentric locking rod 42; The closed end of the steel wire 41 is hinged to one of the splints 3 ; the end of the eccentric locking rod 42 can be pressed against the other splint 3 , thereby locking the two splints 3 .

Specifically preferably, as shown in Figure 1 and Figures 10-12, the eccentric locking lever 42 shown in Figure 11 is a view from another perspective in Figure 10, and the connecting pin 43 can be pivotally connected to the eccentric locking lever 42, as As shown in Figure 12, the two ends of connecting pin 43 are provided with screw 431 respectively, and screw 431 fixes the two ends of U-shaped steel wire 41 to connecting pin 43; The tight rod 42 rotates to realize the rotational connection.

The U-shaped steel wire 41 is preferably as shown in Figure 13, the open end of the U-shaped steel wire 41 can be hinged to the splint 3 to realize that the other end is rotatably connected to the splint 3, so that the handle of the eccentric locking lever 42 is rotated to drive the U-shaped steel wire 41 The hinge drive drives the two splints 3 to abut against or separate from each other, which can realize fast clamping and loosening of the pipe gripper.

It should be noted that modularization is understood as relative to the welding structure, each component of the pipe gripper used in the aircraft conduit welding fixture of the present invention is a disassembled component, and the specifications of the components can be designed through design standards or according to requirements. The various parts can be assembled instead of welded to form the gripper structure, so compared with welding, it can be flexibly assembled and the size of the parts can be flexibly changed, especially the pipe grippers with different heights and inclination angles can be assembled by simple opening industry .

Example 2

On the basis of embodiment 1, the present invention also provides a kind of use method of the pipe gripper that is used for aircraft conduit welding fixture, uses the pipe gripper that is used for aircraft conduit welding fixture as embodiment 1, comprises the following steps:

Step 1: According to the required clamping position of the aircraft conduit, fix the first positioning support on the welding fixture of the aircraft conduit; the first positioning support is provided with several groups of hinged holes connected by hinged bolts 21; each group of hinged holes Including three in a triangular arrangement; according to the height of the aircraft duct, select the first connecting plate of matching size, connect the first connecting plate to the first positioning support; fix the splint 3 on the first connecting plate;

Step 2: Open the two splints 3, place the aircraft duct between the two splints 3, and lock the locking member 4, so that the two splints 3 are clamped to the aircraft duct;

Step 3: According to the angle of inclination of the aircraft conduit, select the second positioning support with a position different from that of the first positioning support for the reaming hole 12, and fix the second positioning support on the aircraft conduit welding fixture with the reaming hole 12; according to the aircraft conduit Select the second connecting plate of matching size; connect the second connecting plate to the first positioning support; fix the splint 3 on the second connecting plate; repeat the above steps two to three until the clamping and positioning of the aircraft conduit is completed.

It should be noted that the above-mentioned first positioning support and the second positioning support are similar in shape and structure, but the positions of the hinged holes 12 are different. Specifically, as shown in Figure 4 and Figure 6, the second positioning support The reaming hole 12 can be the reaming hole 12 of the first positioning support with one of the reaming holes 12 as the center of the circle to obtain the rotation angle. The angle of inclination of the conduit segment that locates the fixed position of the pedestal. For example, as shown in FIG. 3 , a group of hinged holes 12 of the second positioning support is a group of hinged holes 12 of the first positioning support, which is rotated counterclockwise by 15° with the hinged hole 12 at a lower position as the center of the circle. The second connecting plate is connected to the hinged hole 12 through the hinged bolt 21. The position changes and is inclined by 15° relative to the first connecting plate. In specific use, the positioning support 1 with different rotation angles is selected according to the direction of the aircraft duct for fixing. In this way, the purpose of using a pipe gripper with a suitable inclination angle according to the direction of the aircraft conduit is achieved.

Example 3

On the basis of embodiment 1, a kind of processing method of the pipe gripper for aircraft conduit welding fixture provided by the present invention can be used for processing the pipe gripper for aircraft conduit welding fixture as in embodiment 1, comprising the following step:

Step S1: turning the overall material into a ring, so that the inner diameter of the ring matches the outer diameter of the aircraft duct; the ring is divided into two half-rings of equal size as two splints 3; batch processing of standardized A plurality of connecting plates 2, a positioning support 1;

It should be noted that the standardization in batch processing of multiple connecting plates 2 and positioning supports 1 with standardized dimensions is understood as the design dimensions used in conjunction with aircraft conduit welding fixtures after long-term use and comparison as a standard, and the connecting plates 2 and locating supports processed according to this standard The positioning support 1 can be a standardized part, and the standard size can be a range, or it can be a certain size model, for example, the positioning support 1 with a width of 70mm, the width of the connecting plate 2 is 50mm, and the height of the connecting plate 2 is 56mm, the thickness of the lower part of the connecting plate 2 is 8mm, and the thickness of the upper part of the connecting plate 2 is 16mm.

Step S2: Several sets of hinged holes 12 for connecting hinged bolts 21 are opened in multiple positioning supports 1, and each set of hinged holes 12 includes three in a triangular arrangement; The hole 12 is rotated at different angles around the center.

It should be noted here that several groups of reaming holes 12 can be understood as opening a group of reaming holes 12 in a plurality of positioning supports 1, that is, one positioning support 1 provides a group of reaming holes 12, each positioning support Each group of hinged holes 12 on the seat 1 rotates at different angles around one of the hinged holes 12 to realize that the positions of the hinged holes 12 on each positioning support 1 are different and regular; it can also be shown in Figure 3, One positioning support 1 is provided with multiple sets of hinged holes 12, and the multiple sets of hinged holes 12 on one positioning support 1 rotate at different angles around one of the hinged holes 12.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention. Inside.

Claims (10)

1. The pipe gripper for the welding fixture of aircraft conduit, it is characterized in that, comprises: positioning support (1), connecting plate (2) and two splints (3); Described positioning support (1) is used for connecting An aircraft conduit welding fixture; the connecting plate (2) is hinged to the positioning support (1) through hinged bolts (21); one of the splints (3) is detachably fixed to the connecting plate (2); The shape and size of the splint (3) are all matched with the aircraft conduit; one end of the two splints (3) is connected by a hinge (22), and the two splints (3) can be pressed against or separated respectively. It is clamped or loosened on the aircraft conduit; the splint (3) is provided with a locking piece (4). 2. The pipe gripper for welding fixtures of aircraft conduits according to claim 1, characterized in that, the splint (3) is in the shape of a semicircle. 3. The pipe gripper for aircraft conduit welding fixture according to claim 1, characterized in that, the positioning support (1) is an L-shaped support plate; the bottom edge of the positioning support (1) is set There are connecting holes (11) for connecting the aircraft conduit welding fixture; the vertical side of the positioning support (1) is provided with a hinged hole (12); the connecting plate (2) is parallel to the positioning support (1 ), the hinged bolt (21) passes through the hinged hole (12) and is bolted to the connecting plate (2). 4. The pipe gripper for aircraft conduit welding fixtures according to claim 3, characterized in that, the reaming holes (12) are provided with several groups, and each group of reaming holes (12) includes triangular Arrangement of three. 5. The pipe gripper for aircraft conduit welding fixture according to claim 4, characterized in that, the reaming holes (12) are provided with multiple groups, and one of the multiple groups of the reaming holes (12) is The reaming holes are rotated around the center. 6. The pipe gripper for the aircraft conduit welding fixture according to claim 3, characterized in that, one end of the connecting plate (2) for connecting the splint (3) is provided with a boss (23); The boss (23) protrudes from the vertical side of the positioning support (1), and can abut against and support the vertical side of the positioning support (1). 7. The pipe gripper for welding fixtures of aircraft conduits according to any one of claims 1-6, characterized in that, the locking member (4) comprises: a U-shaped steel wire (41), an eccentric locking rod (42); the open end of the U-shaped steel wire (41) is rotatably connected to the eccentric locking lever (42) through the connecting pin (43), and the closed end of the U-shaped steel wire (41) is hinged to one of the The splint (3); the end of the eccentric locking rod (42) can be pressed against the other splint (3), and then the two splints (3) can be locked. 8. The pipe gripper for aircraft conduit welding fixture according to any one of claims 1-6, characterized in that, the splint (3) is fixed to the connecting plate (2) by an expansion pin (31) . 9. A method for using a pipe gripper for an aircraft conduit welding fixture, characterized in that, using the pipe gripper for an aircraft conduit welding fixture as described in any one of claims 1-8, comprising the following steps: Step 1: According to the required clamping position of the aircraft conduit, fix the first positioning support on the welding fixture of the aircraft conduit; the first positioning support is provided with several groups of clamping bolts (21) connected to each other. Described reaming hole (12); Each group of described reaming hole (12) comprises three that are arranged in a triangle; According to the height of described aircraft conduit, select the first connecting plate of matching size, connect described first connecting plate on the first positioning support; fixing the splint (3) on the first connecting plate; Step 2: Open the two splints (3), place the aircraft conduit between the two splints (3), and lock the locking member (4), so that the two splints (3) clamped to the aircraft conduit; Step 3: According to the inclination angle of the aircraft duct, select a second positioning support whose opening position of the hinged hole (12) is different from that of the first positioning support, and fix the second positioning support on the aircraft duct Welding jig; select a second connecting plate of matching size according to the height of the aircraft duct; connect the second connecting plate to the first positioning support; fix the splint to the second connecting plate; Repeat the above steps two to three until the clamping and positioning of the aircraft duct is completed. 10. A processing method for a pipe gripper of an aircraft conduit welding fixture, characterized in that, for processing the pipe gripper for an aircraft conduit welding fixture as described in any one of claims 1-8, comprising the following step: Step S1: turning the overall material into a ring, so that the inner diameter of the ring matches the outer diameter of the aircraft duct; the ring is divided into two semi-circular rings of equal size as the two splint (3); batch processing of a plurality of the connecting plates (2) and the positioning support (1) with standardized dimensions; Step S2: Several sets of hinged holes (12) for connecting the hinged bolts (21) are opened in multiple positioning supports (1), and each set of hinged holes (12) includes triangularly arranged hinged holes (12). Three; multiple groups of the hinged holes (12) rotate at different angles with one of the hinged holes (12) as the center.

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